Download Bose Headphones Specifications

Bose® QuietComfort® 25
Acoustic Noise Cancelling® headphones
Can you get a pressure sensation when
trying on noise reduction headphones?
Our QuietComfort® headphones, including QC®25 headphones, cannot
create any “static” pressure in the earcups. We infrequently receive
reports from people who believe they are feeling some such pressure. The
only explanation we have is that the perceived sonic effect one hears
when wearing any well-performing ANR headphone – where the lowfrequency sound in one’s environment is significantly reduced – also can
be caused when one’s eardrums are under a pressure difference, which
can happen in a fast-moving elevator or a descending airplane. Some
people may associate this sound with a sense of pressure.
Airline travelers quickly learn to yawn or swallow to “pop” their ears when
the world sounds like this, as the plane ascends or descends. The sonic
effect of ANR, by reducing the low-frequency noise, can obscure this
trigger we’ve all learned, and you may feel some discomfort if you don’t
“pop” your ears soon enough to avoid any discomfort. The first time of two
you fly with any of our QuietComfort headphones, pay particular
attention to swallowing early to equalize the pressure in your ears.
4B
LEGAL DISCLAIMER
Made for iPhone 5s, iPhone 5c, iPhone 5, iPhone 4s, iPhone 4, iPhone 3GS, iPad Air, iPad mini with Retina display, iPad (3rd and 4th generation), iPad
mini, iPad 2, iPad, iPod touch (2nd through 5th generation), iPod classic, iPod nano (4th through 7th generation), and iPod shuffle (3rd and 4th
generation).
iPad, iPhone, iPod, iPod classic, iPod nano, iPod shuffle, iPod touch, and Retina are trademarks of Apple Inc., registered in the U.S. and other
countries. iPad Air and iPad mini are trademarks of Apple Inc. The trademark “iPhone” is used with a license from Aiphone K.K.
For internal and reseller distribution only – Bose confidential.
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CC013997 QC25 FAQ 5.6.14